[G12] Minutes from the 2/17/2010 meeting

[Craig Bookwalter]

Hi folks,

Minutes from today's meeting can be found at:

http://clasweb.jlab.org/rungroups/g12/wiki/index.php/17Feb10

and pasted below:

Agenda

    * Diane/Sasha: Status of gflux
    * Gagik: More on missing tracks
    * Heghine: Momentum correction status
    * New meeting time choices
    * Tagger energy expected vs measured w/ eloss corrections
    * PDU/wiremap status: Craig on behalf of Mukesh
    * Status of pass1 cooking
    * Analyses status:
          o eta pi- Delta++ Diane
          o pi+ pi+ pi- Craig
                + g6c t-slopes vs g12 t-slopes
          o Cascades Johann
          o Kaons Will/Mike

[edit]
Minutes

    * Attending: Craig, Dennis, Will, Carlos, Diane, Sasha O, Valery, Paul
E., Ben, Miles, Paolone, Mike Pi.
    * Sasha has all of the skim-5 files from the silo cached at FSU. Sasha
needs to run tripfixer on these but he doesn't know how or what it
even does in general. We would like to get Eugene (and perhaps Paul
Mattione) in the room with us to explain some of this to us.
    * Sasha will also count the number of photons in the run to see how
close we got to our estimate of 68 pb^-1
    * Craig is going to try and calculate a cross section for some
particle in p pi+ pi- exclusive (he'll talk to Raffaella and Marco
about which channel to look at) -- Diane/Sasha will provide us with
numbers for the subset of data we're looking at. This should give us a
handle on how we're doing with normalization.
    * Craig has some momentum corrections from Heghine that she wants him
to look at. Craig wants her to just present the same plots she did
before.
    * According to the scheduler it seems like our current meeting time is
still the best for everyone, so it will remain at noon on Wednesday
    * Maurizio is working on our wiremaps and will have them ready by the
end of the week.
    * Craig is continuing to work with Eugene on the tagger energy --
eloss corrects the low part of the tagger pretty well but doesn't do
such a good job on the upper end. He'll add in the momentum
corrections Heghine gave him and see if it improves at all.
    * Diane has been perfecting her cuts for the two photons from the eta
    * Craig has t-slopes for g6c and g12 that agree pretty well -- not
sure how Mina got her numbers, unless hers have both eloss and
momentum corrections in place (which is probably true). Craig and
Diane's slopes don't agree, when perhaps they should--acceptance may
be the culprit.
    * Will is processing on the farm.
    * Miles will have some stuff to show next week.
    * Paul wants to have a g12 update for the collaboration meeting so
we'll have to decide at some point who's going to do that.